US843073A - Impact and reaction motor. - Google Patents

Description

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No. 843,073. PATENTED FEB. 5, 1907. 0. GOMSTOGK. IMPACT AND REACTION MOTOR.

APPLICATION FILED NOV. 24. 1902. RENEWED APR. 19. 1905.

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PATENTED FEB. 5, 1907. O. GOMSTOOK.

IMPACT AND REACTION MOTOR. AVPPLIOATION FILED NOV. 24, 902. RENEWED APR. 19, 1905.

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' as-m i No. 843,073. PATENTED FEB. 5, 1907 O. OOMSTOGK.

IMPACT AND REACTION MOTOR. APPLICATION FILED NOV. 24. 1902. RENEWED APR. 19, 1905.

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0. 'GOMSTOGK.

IMPACT AND REACTION MOTOR.

APPLICATION FILED NOV. 24, 1902. RENEWED APR. 19, 1905- am MR WN PATENTED FEB. 5, 1907.-

0. GOMSTOCK. IMPACT AND REACTION MOTOR.

APPLICATION FILED NOV. 24, 1902. RENEWED APR. 1a, 1906.

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CHESTER coMs'rooK, or BROOKLYN, NEWIYORK.

IMPACT AND REACTION MOTOR.

Specification of Letters Patent.

' Patented Feb. 5, 1907 Application filed November 24, 1902. Renewed April 19,1905. Serial No. 256,412. g

' tion.

This invention relates to motors or rotary engines; and it consists, substantially, in the improvements hereinafter particularly de scribed.

The invention has reference more especially to motors or rotary engines of that class in which steam or other expansible fluid is employed as the propulsive agent, and while my improvements are applicable alike to motors of either single1or compound type I have preferably elected the latter type herein for the purposes of illustration.

.One of the principal objects of the invention is to provide animpact-motor capable of deriving a maximum amount of kinetic energy from the force of expansion of the propulsive agent employed, and one also in which there'is perfect balance of parts, as

" I takenjust to one side of the central plane of 1 well as harmony of action thereof, tending to the production of regular or uniform motion.

A further object is toprovide a motor of this character wherein the force of expansion of the propulsive agent employed is equally distributed and practically continuous in effect, and one also in which vibration is reduced to the minimum and in which the evils resulting from undue friction are largely overcome.

A still further object of the invention is to provide an impact-motor which is comparatively simple in the construction and organization of the parts or elements thereof, besides being most economical both in the production and expenditure of energy, while still furnishing-maximum driving power.

The above and additional objects are attained by means substantially such as are illustrated in the accompanying drawings, in Which Figure 1 is a vertical side elevation of one form or embodiment of my improved impactmotor as it appears when constructed for operation. Fig. 2 is a vertical longitudinal sec tional view taken through the casing and the rotatable impact-wheel therein, some of the parts being shown in elevation. Fig. 3 is a part vertical transverse sectional view of Fig.

rotation of. the impact-wheel and showing more clearly the construction by which the full force of direct impingement of the expansible propulsive agent upon such wheel is derived. j: ig. 4 is a sectional detail view in perspective to more clearly indicate the construction of the peripheral portion of the imv p act-wheel, together with the stationary interior structure cooperating with the wheel in producing the desired motionoftthe latter..

Fig. 5 is a similar view to Fig-'3 4, the section in one direction being taken in a different plane 1 to show one ofthe means formingabutments or resistances whereby-the impact-wheel is assisted to be driven by the reactive eflect, of

pulsive agent employed. Fig. 6 is a sectional the successive charges of the expansible pro- Fig. 2. Fig. 7 is a view somewhat similar to Fig. 4, showing moreclearly the course of lateral flow taken by each chargeof the x- .pansible propulsive agent on either side of the central planeof rotation of the im actwheel. Fig. 8 is a vertical longitudina sectional view of another form or embodiment of my improved impact-motor, and Fig.9.is}

a vertical longitudinal sectionalview representing a modification of; this latter form-or embodiment. transverse sectional elevation of the form of motor shown in-Fig; 9 andis substantially a similar view to Fig-3. Fig, 11 is a view substantially similar to Fig. 7 and representing more clearly the mode of-operation of. my improved impact-motor shown' at Figs. 8, '9, and 10. j

Before proceeding with a moredetailed description 1t may be stated that my im roved" Fig. 10 is a part vertical impact-motor may be constructed 0 either"- single or compound 1; e and also that the same may be either sing e or double act' in character, accordinglyas may be desire in practice, and in either case the same is both effective and reliable in operation, being capable of easy and ready control by the at:

tendant or operator in charge, as well as" IOO comparatively noiseless and Without loss by leakage or otherwise of any of the force 9r power of the ropulsive agent employed, these features eingof considerable imporany tendency: to interdo t tance in an engine or motor of this class. The embodiments herein shown are such as to readily overcome teracting forces, and likewise no difficulty is of the operation of my lmproved motor is such thereof with a sleeve or stuffing-box e, having ling the said impact-wheel C, and through the employed whereby the successive charges I experienced in starting and stopping the] motor. The rime mover or impact-wheel of the motor 1s actuated both by direct im-' pingement and reaction of the expansible propulsive'agent thereupon, and means are of such agent are caused to flow laterally in streams which are nu'merouslydistributed about said impact-wheel on either side of the central plane of rotation thereof. The effect as to greatly facilitate the exhaust of the expansible' propulsive agent after expenditure of its force, and due to the special construction and organization which 1 preferably employ the casing of the motor constitutesan important factor in the maintenance of equilibrium and stability of structure. I may employ means for governing the supply of expansible propulsive agent to the motor in accordance with the speed of the latter, and it will be apparentthat various changes may be made in the several embodiments herein shown without departure from the spirit or scope of my invention.

Specific reference being had to the embodiment shown in Figs. 1 to 7, inclusive, of the drawings, A represents the casing of my ilnproved compound impact-motor, the same belng mounted upon a suitable pillar or standard (1, having a base I), the said casing being constituted of a cylinder 0, having end disks or heads (1 (1, each formed centrally a gland f and provided with a suitable bearing g-for the support of the shaft B, which is driven by the motor, as will hereinafter be explained. The disks or cylinder-heads d are each set outwardly at the part it thereof beneath the shaft, by which to provide conduits (1, leading from an inner exhaust-chamber i, for the spent propulsive agent, and said disks or heads are secured to the ends of the said cylinder 0 in a fluid-tight manner by means of bolts k, as shown. These disks or cylinder-heads are also of special construction on their inner faces, whereby the impactwheel C is materially assisted to be driven or propelled in the operation of the motor, as' will hereinafter be more fully described. In the present instance of my invention the cylinder c is stationary, and rigid therewith is preferably an inner cylinder formed with a continuous circumferential channel m, andclosely fitting within said latter cylinder is still another stationary cylinder n, the central outer surface of which serves to close the said channel m, and thereby form a supplychamber for steam or other expansible propulsive agent employed for driving or propellatterthe shaft B, it being here remarked that the hub o of said impact-wheel is keyed or otherwise secured to the shaft B at p, the ends of said hub being movably adapted to the inner ends of the saidsleeves or stuffingboxes e. (See Fig. 2.) The sides of said channel or supply-chamberm are located a suitable distance beyond and on either side of the central plane of rotation of said impact-wheel C, and formed in the upper part of cylinder 0,

2 preferably in vertical alinement with the axis of shaft B, is an inlet-chamber s for the steam or other expansible propulsive agent, said inlet-chamber being incommunication with the channel or supply-chamber m through an opening t, and also formed in the cylinder 0 is an opening a for receiving the end of a steam or other pipe 4, Fig. 1, leading from the source from which the expansible propulsive agent is derived, said pipe having a suitable cut-ofi' or controlling valve 4 The in nermost cylinder n is held in stationary position by means ofkeys or other'means 22, (see dotted lines, Fig. 3,) and at as many points thereof as may be desired, but preferably at diametrically opposite points, (see Figs. 2 and 3,) the sai innermost cylinder n is formed with openings w, leading from said channel or supply-chamberm to an inner annular pres sure-chamber 1, formed between the continuous flanges or side portions 2 2 ofa stationary ring 3, centrally disposed both with reference'to the heads of the casing and the sides of the impact-wheel, the said flanges or side portions 2 2 extending outwardly with reference to the axis of rotation of said .wheel and having the edges thereof in contact with adjacent portions of the inner surface of said innermost stationary cylinder n. Also rigidly secured within the casing in any suitable way and on either side of the stationary ring 3 is another ring 5, having the outer surface thereof in contact with adjacent portions of the inner surface of the innermost cylinder n, and adjoining the lower outer edges of said latter rings are the upper inner edges of smaller rigid or stationary rings 6, having theouter continuous sides thereof also flanged or extended outwardly at 7 with reference to the axis of the impact-Wheel, said extended portions being also in contact with adjacent portions of the inner surface of said inner most cylinder n; it being noted that the body of each of said rings 6 is of substantially equal depth or thickness with the body of said ring 3 and that the depth or thickness of each of said rings 5 is substantially equal to the full depth or thickness of each of the said rings 3 and 6. In this way an outer annular chamber, channel, or course 9 is formed at each end of the casin A and on either side of the channel or supp -chamber m, it being observed that said courses .9 are each of somewhat greater dimensions transversely than the said channel or supplychamber m, and on reference to Fig. 5 it will be seen that the inner surface of each of the said rings 5 is recessed at regular intervals all around to form pockets each constituted of an inclined wall 10, disposed tangentially to said ring-surface, and a straight wall 11, the

' face of which is radial to the axis of the impact-wheel. The said impact-wheel C is constructed of a central-web 12, connecting the hub with the outer rim 13 thereof, the annular spaces between said hub and rim constituting the exhaust-chambers 'i, hereinbefore referred to, and s'ecured'to the outer face of said rim in any suitable way is a r' v 15, which is of width preferably to exten beyond and to either side of the said web 13,- the said ring being herein shown of width in excess of the width of ring 3 beyond it, the outer faces of the projecting side portions of this ring 15 being in working contact at 16 (see Fig. 7) with adjacent portions of the inner surface of the said rings 5. The outer surface of the main body or central portion of the ring 15 is formed at intervals all around with pockets each constituted of an inwardly-inclined wall 17, which is substantially tangential to the said surface of the ring, and a straight wall 18, the face of which is radial to the aims of the impact-wheel, said walls being reversely disposed to the corresponding walls constituting the pockets of each of the stationary rings 5, (see Figs. 4 and 5,) and the pockets of each of said latter rings and the ring 15 are preferably equal in number. Also secured to the outer surface of the wheel-rim 13 in any suitable way and on either side of the centrally-disposed ring 15 is a ring 20, the depth or thickness of the main body of which is substantially equal to the depth or height of the straight walls 18 of the pockets in said ring 15, the outer side of each of these rings 20 being flanged or extended inwardly all around at 21 to rest on the rim, as shown, the said rings being also each of sufficient width to project beyond the inner side of the adjacent stationary ring 6 and form a working contact at 20 with a portion of the inner surface of said latter ring. full de th or thickness of each of the rings 20 (inclu ing the said flanged or extended portion 21 thereof) is substantially equal to the depth or thickness of the central ring 15, and in virtue of the construction and organization described and shown an annular course 22 is formed between the inner surface of the body of each of said rings 20 and the adjacent portions of the outer surface of the rim 13. Located upon the said rim at the outer. side of each of the rings 20 is still another or outer ring 25, the depth or thickness of which is practically equal to the full depth or thickness of each of said rings 20, and the outer surface of each of said outer rings 25 is recessed at intervals all around,

similarly as the outer surface of ring 15, to

form-pockets each constituted of an inclined wall 26, disposed tangentially to the surface of the ring, and a straight wa l 27 the face of (See more particularly Fig. 7.) The which is radial to the axis of impact-wheel C,

(see Fig. 4,) said walls-26 and 27 being equal in number and corresponding in position with the walls of the pockets of said ring 15 as shown. It may be stated at this point that in the operation of the motor the straight walls of the pockets of each of the rings" 15 and 25 constitute the means by which direct impingement is had of the charges of expansible propulsive agent upon the impact-wheel, while the corresponding walls of the pockets of ring 5 constitute abutments or resistances for assisting in the propulsion of said wheelby the reactionary effect of such charges. a

Fitted in a circular recess (1 therefor on the inner surface of each of the disks or cylinder-headsd is a ring-plate 30, located directly alongside the outer edge of the adjacent ring 25, and said ring-plates are each formed or provided on its inner surface with ockets each constituted of an outwardly-mclined wall 31 and a straight substantially radially disposed wall 32, the said walls being prefer ably equal in number to and ccoupyin practically the same relative positions as t e corresponding walls of the pockets on the inner surfaceof each of the before-mentioned stationary rings 5. It will be observed that the height of each of the recesses d is greater than the width of said ring-plates, thus leaving an open space (1 at the inner edge of each ring-plate, the purpose of which will be explained hereinafter. Referring back to the stationary ring structure within the casing and the cod erating movable-ring structure carried by t e impact-wheel, it will be seen that the body of the stationary ring 3 is formed at predetermined equidistant oints thereof with injectororts 33, the si es of each of which are inc ined or tangential to the surface of said ring and substantially arallel with the inclined walls of the poo ets formed on the outer surface of each of the movable rings 15 and 25. In other words,

the positions of the sides of said injector-- ports are such that successive charges of steam or other expansible propulsive agent 'which may be forced through the pits will impinge u on the straight or ra ally-disposed wal s of the pockets of the ring 15,

thereby turning the wheel 0 by the direct force of impact. it As shown in Fig. 3, the number ofsaid injector-ports is com aratively limited, Whereas in Fig. 4 one is s own for each of the pockets of the said ring 15,

either of these constructions answering the purposes of my invention.- Formed in the sides of each of the said pockets of the ring 15 are conduits or ports 35, the sides of which to each other, the said conduits or ports leading from'the said pockets to. the courses 22 on either side of the said ring 15, and each of the movable rings 20 is formed at pointscorare inclined outwardly in opposite directions 4 of each of the injector-ports33 the said con-.

ring 5 -'beyond;it=with conduitsror ports 37,

the sides ofi eachaof. which are inclined ortan gentialwith. respect to the surface of said ring, the position of; said sides being pracconduitsororts 38 leading. from the said;

pockets-oftt erings 5 to thechambers 9 at the outer sides of said latterrings. Each of the stationary ringsfiisformed at points corresponding-to the position of the pockets of thecorresponding movable ring 25 with conduits or-ports 40, thevsides of. each of which are in. substantial. parallelism with the. sides.

duits or. ports. leading from, the said courses 22 to ;-the saidpockets; (See Fig. 7.)

Each of the said pocketsof each of. the-said rings. 25 isiformedwith a conduit or port 42,

the sides ofwhich areinclined outwardly, as shown,; the said conduits. or .ports leading from the said pockets to-the-pockets formed org-provided onthe-ring-plates 30, secured to the inner, sidesof-the cylinder-heads.

Referrin -to Figs.1, 2-, and 3,it* will be seen that the met-chamber s for the expansible.

propulsive a ent is-in communication. at the; points wit arelief-charnber 51,formed in the cylinders, and located in-the said inlete chamber-is a balance-valve52, which-works across the openingst and/u and itself ispro vided with an opening 53 (see Fig, 3) .for establishing communication between said.first named openings. Said b'alanoe'valve ispractically a piston with the two ends. of its rod.

54 .working in stufiing-boxes. 55, properly fitted in. openings in the cylinder-heads. (See Fig. 2-.) As shown in Fig. 1, one "end of said-piston-rodis in movable connection with. one arm 57 of-a lever-which is movably sup.- ported at 58 bya bracket 59 from the casing, the other arm 60 of said leverbeing in movable connection with a collar 61 which is s1id-. able on theshaft B andwhich is in movable connection at 62 with the arms 630i an ordinary centrifugal governor 64,-suitably-supported and relatively disposed-both with reference to. said shaft and a drivepulley D, carried thereby, it being noted that this por-. tion of the-shaft is supported in suitable bearings 65 therefor at t eupperend of a standardor upright 66. I Itisapparent from the. construction and organization just de-. scribed that the balance-valve is operated from the governor-in a manner toentirely control the supply of expansible propulsive. agent to the motor proportionately as the speedof the latter increases-or diminishes.

It will be understood, of course, that in the ews;

responding; tothe pockets in the a stationaryfilled with steam or otherexpansible pro- .pulsive agent under pressure, such agent being supplied tosaid pressure-chamber either continuously or. under successive impulses received in the supply-chamber, and, consepelled underpressure, through-the injectorports 33 and. act' by direct. impingement upon.- the straight or radially-disposed walls of the pockets of the ring. 15 to turn. the wheelC by the force .of impact. Whilethus partially-expending its force the charge re? ceived in each ofsaid pockets. spreads-outwardly-of its own pressure. HildgfiOWS through theconduits or ports 35-.inb the-chambers )22; on either sideof said; ring, 15, and. thence the separate portions of the charge flow through the conduitsorv ports37 ofptherings. 20, andthe reactionaryefiect produced by the impingement thereof-up o r}: thev straight or radially-disposed walls onabutments of. the I pockets. of, the 5 assists in driving orpropellingthe.said impactawheel, asis ap- -.parent. Simultaneously; with the reactive efiect thus. produced-theseparate portions of each chargeof-thesaid; expansiblepropulsive agentnext. passes thrpughtheco'nduits or ;p.0r t s.38 intotheouter courses 9 and thence ;through, the ports- 4o,ot the rings 6.,and a ainstthestraightorradially-disposedwalls 0% the pockets. of- --rings 25 by directimpingef ment,- -si.milarly as in, thefirst instance referred to, -and-.-fina lly= the said. separate. por tions of the-charge pass nut throughtheconj duits orports .42 of; i ings.-.2 5 and.-.a second r eryeflect sen-pro dbrimpin ment of the chargeportions upon. the straight or radially-disposed-walls 32 of the ringplates 30 on the inner-sides of, the heads of the casing, -thissecond. reactionary efi'ect .propulsion of the-wheeL; a. The abutments or final resistances ailordedby-these latter walls also tend by the reactiye force of; the charge portions of propulsive agent thereagainst to stead the entire structure, and it is apparent t at the spent charges pass. from the pockets-in the ring-plates. through the spaces. d at the inner edges. of-said. plates, then into the-eXhaust-chambers i, .and finally to. the

exh-aust-pipe. Ethrough the-conduits d. It will be understood,of course, that the. number of stationary and movable rings herein described may beincreasedor diminished as may be desired, and it-is evident that by employin a set'ofeach of such rings at one side .onlyo% the web of the wheel themotor may The altered from thecompound type to a motor of the single type. The construction and organizationofi'parts herein shown, however,

1 vis preferred inpractice.

-It may be stated thatin the lateral flow of operation of; the particular embodiment of. my improved. motor described thechannel or pressure-chamber. 1 is kept constantly;

also. materially assisting in thedriving orquently charges of. agentwillbe exthe separate portions of each charge of ex pansible propulsive agent employed there is a gradual increase of volume of such portions in their outward progression, accompanied by a corresponding decrease of pressure thereof, and in order to compensate for this and still gain the maximum effect from the charges I preferably form each of the conduits or ports 38 of a greater'transverse area than that possessed by each of the conduits or ports 35, while the transverse area of each of the conduits or ports 42 is still greater than that of the said conduits or ports 38; The transverse area of each of the conduits or ports 37 and may be substantially equal to each other, .and the corresponding area of each of said conduits or ports 35 is preferably less than the transverse area of each of the injector-ports 33, the combined transverse area of opposite ones of said conduits or ports 35, however, being greater than the similar area of one of said injector-ports.

For like reasons the several chambers herein referred to may also be made of varying dimensions, as already described. It will be understood that pending the passim of the several pockets of the impact-wheel before the injector-ports the successive charges exert both the direct and reactionary effects desired for driving "or propelling the wheel.

The construction and organization described instance the same is double-acting, which is to say that according to this second form or embodiment two shafts. are driven by the motor in opposite directions to each other and that the construction and organization of corresponding parts are somewhat reversed in order. Thus in said Fig. 8, A represents the outer casing of the motor as a whole, the same comprising a stationary cylinder 75, mounted upon a pillar or standard a having a base b said cylinder being closed fluid-tight by means of a head (1 secured to each end thereof through the medium of fastening-bolts d. The said heads are formed centrally thereof with hollow sleeves e and e, communicating with the interior of the outer casing, it being here stated that the said interior of the casing constitutes an exhaust-chamber e for the propulsive agent after expenditure of its force and that one of said heads d is provided with an outlet-pipe e for escape of the exhaust. In this instance of myinvention two oppositely rotating wheels are employed, one being practically or otherwise secured thereto at i the hub of a driven pulley G. Passing through the said hub-sections or hollow shaft g g is a shaft H, which is also hollow at 7 8.,for a part of its length and is formed in opposite sides thereof with inlet-ports 79, which are in communication with the interior of an inlet-chamber 80, formed at the outer extremity of sleeve e said inlet-chamber having an inlet-pipe 81 leading into the side thereof from any suitable source (not shown) from which the expansiv e propulsive agent is derived, and the outer end of the hollow portion of said shaft has also keyed or otherwise secured thereto a driven pulley J Keyed or otherwise secured to this shaft H centrally of the casing A is the hub 82 of another wheel J, which is constituted of a rim 83 and a series of hollow spokes 84, the inner ends of which are fitted to said hub 82 and are in communication with the hollow portion 78 of said shaft H, as shown, the outer ends of said spokes being fitted in openings therefor in a ring 85, which is provided all around at the sides with outsurface of the wheel-rim 83 thus constitute a continuous "annular supply-chamber 88, hav-;

said ring 92 is a ring 93, which is formed on its outer surface with pockets each constituted of an inclined wall and a straight or radially-disposed wall similarly as on the inner surface of each of the rings 5 already mentioned. Secured to the outer surface of the said rim 83 also in like manner and on the outer side of each of said rings 93 is a ring 94, (similar to each of the rings 6,) the sides of which are flanged or extended at 95 to rest upon the rim, and-thereby form a continuous course 96, as shown. Secured tothe inner surface of the cylinder or rim 76 of the rotatable casing or wheel, so as to inclose' the said ring 92, is a ring 97, the inner surface of which is formed all around with pockets each con- I radially-dispose wall, the same as the ring 15, hereinbefore mentioned, said walls being reversely disposed to the corresponding walls of the pocketsof each of the said rings 93. Also secured to the inner surface of said cylinder 76 on either side of the ring 97 is a ring 98, the main body of which is of depth or thickness-less than that of-said ring 97 and the outer side of which is flanged or extended at99, so as to form, with the adjacent side of ring 97, a course 100. Still further secured to the inner surface of thes aid cylinder or rim 76 on the outer side of each of the said rings 98 is an outer ring 101, the inner surface of which is also formed with pockets each constituted of an inclined wall and a straight or radially-disposed wall located in the same direction. or position as the corresponding walls of the pockets of ring 97, the said rings. 101 also each being formed in its outer surface with a continuous outlet-chamher 1.02, which is in communication with the exhaust-chamber e through openings 103, formed in the rim 76 at predetermined intervals thereof. The body of the ring 92 is formed at suitable intervals thereof with suitable injector-ports 104, (similar to-those in ring 3 of the first embodiment described) whereby the charges of expansible propulsive agent may act by direct impingement upon the radially-disposed walls of ring 97, and this latter ring is formed at either side of each pocket thereof with a conduit or port 105 for the lateral flow or passage of the divided portions of each charge to the adjacent courses 100, from each of which the charge portion flows through a conduit or opening 106 in the ring 98, whence it further expends some of its remaining expansive force against the reversely-disposed radial walls of the pockets of the adjacent ring 93, and thus it will be seen that the wheel J and inner ring, together with their shafts and pulleys, are caused to revolve in opposite directions. As each of the charge portions is acting upon the said radially-disposed walls of the pockets of the ring 93 it escapes through a conduit or port 107 to the adjacent outer course 96 of the ring 94, whence it passes through an opening 108 in the body of the latter and impinges in like manner a ainst the straight or radially-disposed walls of the pockets of the adjacent ring 101 and finally passes throu h opening 103 to the exhaust-chamber and t outlet-pipe e tion and operation of this embodiment of my improved motor will be fully understood without further explanation; but it may be stated that I am not strictly limited to the details thereof herein preferably shown and described, since deviations therefrom may be made without departure from my invention.

The steam or other expansible propulsive a ent is fed to the supply chamber of the w eel J from the hollow portion of shaft H rough the. It is thought the constructhrough the hollow spokes of said wheel, as is apparent."

Referring to the modification shown in Figs. 9 and 10, it may be stated that the constructlon and organization of the inner wheel M and outer wheel N are substantially the same in all essential particulars as in the form or embodiment shown at Figs. 8 and 11, the only difference residing in the mounting of said wheels and their shafts. Thus in said Figs. 9 and 1.0 the outer casing A is constructed of a cylinder 110, having secured to the ends thereof by bolts 111 the heads 112 and 113, the latter being formed centrally thereof with hollow sleeves 114 and 115, respectively, each having a stuffing-box and gland 116 and suitable bearings 117, a shaft 118 working inv one of said stuflfingboxes and bearings and a shaft 119 working in the other, the said sleeve 115 being formed with an interior inlet-chamber 120, having in communication therewith a pipe. 121, leading from a source (not shown) of sup ly of expans'ible propulsive agent. The sai shaft 119 is hollow, (see dotted lines,) similar to the hollow portion 78 of shaft'H of-Fig. 8, and is in communication with said inletchamber by means of lateral openings in the shaft. In this instance also the inner wheel M is in communication with the interior of said hollow shaft 119 through hollow spokes 123, the inner and outer ends of which are secured to the hub 124 and rim 125, respectively, of said innerwheel M, said hub being keyed or otherwise secured to the'innerend of said hollow shaft 119, as shown, it being'observed that the sleeve is extended inwardly of.the

casing at 126 to form anadditional bearingfor this shaft. Also in the present instance the outer wheel N is constructed of a hub 127, keyed or otherwise secured to the inner end of shaft 118 and carrying at its inner end a disk 128, to the fperiphery of which is se-' cured, by means 0 bolts or screws 129, one end of a cylinder 130, the other end of which is flanged at 131, leaving an open space at this side of the structure which is in communication with the interior of the casing A which interior constitutes an exhaustchamher 132 for the spent propulsive agent, said exhaust-chamber having. an outlet-pipe 133, leading from the head 113 of said casing.

Having thus described my invention, I claim 1. In an impact-motor, the combination with a circular set of pockets and a member opposed thereto having aset of jets, said opposed member completely closing the mouths of all of said pockets, of a member having a second set of jets, a second set of ockets, the mouths of all of which are comp etely closed by the last-mentioned member, and means for conducting the steam'from said first set of pockets to said second set of jets; said conducting means including outlets formed interiorlyin said pockets, and the aggregate capacity of said outlets being materially greater than the aggregate capacity of said second set of jets.

2. In an impact-motor, the combination with a member having a jet, of a circular set of pockets opposite thereto, the mouths of all of said'pockets being completely closed bysaid jetmember,- two circular course members into both of which said pockets discharge laterally, jetsin each of said course members, a circular set of pockets opposite the jets in one of said course members, anda circular set ofpockets opposite the jets in the other of said course members, all of said pockets being completely closed by the opposed course members. i

3. In an impact-motor, the combination with a jet, of a circular set of pockets opposite thereto; two circular courses into both of which said pockets discharge; jets for each of said courses, a circular set of pockets opposite the jets in one of said courses, and a circular set of pockets opposite the jets in the other of said courses; two courses in communication with said second and third sets of pockets respectively; fourth and fifth sets of pockets, and jets provided in the lastmentioned'two coures in position to play upon said fourth and fifth sets of pockets.

4. In an impact-motor, the combination with two cylindrical members, whereof one fits steam-tight within and is revoluble relatively to the other, of the following devices formed in said members, namely, a central circular set ofpockets, sets of pockets arranged in two series which ramify upon said central set, and sets of jets for discharging into all of said pockets; said sets of jets alternating with said sets of pockets and being in series therewith, the mouths of each pocket being closed by the surface ofthe opposing cylindriform member.

5. In an impact-motor, the combination of a cylindriform wheel member and a cylindriform casing member closely fitted thereto so as to prevent escape of steam longitudinally between said members, one of said members having circularsets of peripheral pockets and also having an annular course between said sets; said course being in communication with the first set of pockets, and being also provided with a series of jets, and the other of said members having annular courses opposite said sets of pockets and also having a set of pockets opposite the jets in the wheel; said casing courses being also provided with jets, and all the courses alternating in series with the sets of pockets, so that the steam may jet from the first course through the first set of pockets-to the second course and may then jet through the second set of pockets to the third course, and may then jet into the third set of pockets.

6. Inan impact-motor, the combination with a wheel and a' casing iof a plurality of circular sets of peripheral pockets, said sets being of equal diameter, and a plurality of annular case members of equal diameter, provided with jets opposed to said pockets, said members being disposed alternately in series with said sets of pockets, so that the steam may jet from the first course into the first set of pockets and pass thence into the second course, thence jet into the second set of pockets, and so on throughout the series,

each course member completely closing the mouths of all of the opposed pockets, and each of the latter having an escape into the succeeding course member.

7. Inan impact-motor, the combination with a wheel and a casing, of a plurality of circular sets of peripheral pockets and a plurality of opposed annular course members provided with jets; said course members being disposed alternately in ramifying "series with said sets, so that the steam may jet from the first course member into the first set of pockets, and pass thence partly into one 4 a lateral escape for the steam into the succeeding course member.

' 8. In an impact-motor, the combination of two cylindrical sets of rings, one set sur- I rounding and fitting close to the other throughout for preventing escape of steam, and means for enabling relative rotation of said sets; some of said rings being formed with pockets and others of said rings being formed with annular courses provided with jets, said rings forming a series in which the pocket-rings alternate with the course-rings,

and the pockets in each ring having outlet-.

openings into the succeeding course.

9. In an impactmotor, the combination of two cylin'driform sets of rings, one set surrounding the other and fitting closely thereto, and meansfor enabling relative rotation of said sets, some of said rings being formed with pocketsand others of said rings being formed with annular courses provided with jets, said rings forming a ramified series in which the pocket-rings alternate with the course-rings, and the pockets in each havingoutlet-openings into the succeeding course,

playing into two succeeding means for enabling relative rotation of said the first-pocket-ring in the series having-con- 'nection with two course-rings, and the latter wheel and easing; some of said rings being formed with pockets and others-of said ringsbeingformed with annular coursesprovided with jets; said rings forming aramifiedseries in which the pocket-rings alternate with thecourse-rings, and the pockets in eachhaving. outlet-openings into the succeeding course, the first pocket-ring in-the series havingconnection with two course-rings, and the latter having jets playing .into two succeeding. pocket-rings, which in: turn are in-connectioni with two succeeding course-rings, the latter having jets for playing into two succeeding pocket-rings.

11. In an impact-motor, the combination of-{two cylindrical sets of rings, one set surrounding, and fitting. closely to the-other for preventing escape of steam, and means for enabling relative rotation of said sets; some of saidrings being formed with pockets and others of said ringsbeingformed withannular coursesprovided with jets, said rings forming an operant series inwhich the pocket-rings alternate with the course-rings, and the pockets in each: ring having. outletopenings into the succeeding. course, the rings in each set. being contiguous, and each set being. capable of withdrawal as a whole from the other set.

1-2. Inan-impact-motor, the combinationof two sets of rings, the'rings in each set being contiguous, and the rings inone set fitting steam-tight within the other set throughout, and beingsomounted that. one set may be separated from the other set as-.an entirety, each of saidsets comprising pocket- -rings and course-rings, and the course-rings in each set being opposite the pocket-ringsiin: the other set, andlhaving'jetsfor playing-intothe latter, and being also-inconnection with the preceding'pocket-ring-in-its own set to receive and discharge therefrom.

13. In an-impact-motor, the combination: with a Wheel and a casing, of'a set of rings upon the Wheel and a. set of rings upon the casing; some of saidring s having courses andjets, and others of said rings having. pockets each formed with an abru t impact-face which extends the entire Wi th of the ring; the pocket-rings; being. narrower than: the

course-rings, and being, placed opposite theretoso as to be overlapped at each. edge thereby; said pocket-rings and course-rings forming an. operant series in which. the pocket-rings and course-rings alternate.

14. In an impact-motor, the combination: with a wheel and a: casing, of a,- set of ringsupon the wheel and a set ofrings upon the casing, some of said rings having coursesand jets-and others of said rings having pockets each formed with an abrupt impacteface which extends the entire width hf the ring; the pocket-rings being narrower than the course-rings and beingplacedopposite thereto soas to be overlapped at each edge thereby said pocket-rings and. course-ringsforming: anoperant serles, in which the pocketrings and course-rings alternate, and. the course-rhigls having inlets in their side walls olpposite t e pockets, so as to admit steam. t erefromi 15; In. an impact-motor, the combination of acasing, a shaft, a wheel-rigidly afiixed to the shaft, and: means by which the wheel ma be'revolv'edbothby direct impingement an by the reaction ofv an expansible propulsive agent thereufpon; said means consisting of an; outer set 0 rin s and an inner set of rings; each ring in eac set being. incontact with the next ring. of the same set, and some ofsaidrin s beingiprovidediwith pockets and others wit jets opposite thereto; said. rings taken together forming an operant series or train.

16; In anlimpact-motor, acasin a shaft, a Wheel rigidly aflixed to the s aft, and means by which the wheelmay be revolved both by direct impingement and. by reaction of an expansible propulsive agent thereupon; said means consisting of aitouterset of rings and aninner set ofrings' eachringineach set beingin= contact with the next ring of the same set and diametrically opposite tothe ring. with Whichit cooperates inthe other set, an some ofsaid rings being, provided with pockets and others with jetsopposite thereto,. said rings taken: together forming an "operant series or trairr.

1.7. In anaimp'act-motor, the combination: of a: casing, a shaft, awheeL rigidly affixed to theshaftpandk means by. which the Wheel:

ma be revolved: both zby direct impingement an I by the reaction of aniexpansiblepropulsive agent thereupon; said means consisting of an outer builtrupicylindriform set of rings and: an inner built-up: cylindriform set of rings, the set on. thewheel fitting. steamtight within the set on the casing, some of said rings having. jets-for the discharge of the propulsive agent, and others of said ringshaving pockets for the reception of the impact propulsive agent.

18. In an impactmotor, the combination of acasing, a shaft, a wheel rigidly afiix'd-to theshaft, and means by which the wheel ma- 1 he revolvedboth by direct impingement an .by. the reaction-of an expansible pg pulsive agent thereupon; said means consisting of anouter built-upcylindriform set of rings, and an inner built-up cylindriform set of,-' rin s, the set on the wheel. fitting steam-tight wit inthe set on the casing; some of said rings havingjets for-the discharge of the propulsive agent, andothers-of. said rings having pockets for the reception of the impact of the propulsive agent, and the rings having dischargeports alternating. in operant series with the rings havingipockets.

19. In an impact-motor, the combination of a casing, a shaft, awheel rigidly affixed to seaove 9 the shaft and means by which the wheel may E may be rotated both by the direct impingebe revolved both by direct impingement and by the reaction of an expansible propulsive agent thereupon, said means consisting of an outer builtup set of rings, and an inner built-up set'of rings; someof said rings having jets for the discharge of the propulsive agent, and others of said rings having pockets for the reception of the impact of the propulsive agent, the rings having discharge-ports alternating in operant series with the rm s having pockets, and each ring I) cylindriform set of rings of equal diameter,

in each set eing in contact with the next ring in the same set.

20. In an impact-motor, the combinatlon of a casing, a shaft, a wheel rigidly afiixed to the shaft, and means by which the wheel may be revolved both by direct impingement and by the reaction of an expansible propulsive agent thereupon said means consisting of an outer built-up set of rings and an inner built-up set of rings; some of said rings having jets for the discharge of the propulsive agent and others of said rings having pockets for the reception of the impact of the propulsive agent, the rings having discharge-ports alternating in operant series with the rings having pockets, and each ring in each set being in contact with the next ring in the same set, and diametrically opposite to the ring with which it coacts in the other set.

21. In an impact-motor, the combination of a casing, a shaft, a wheel rigidly aflixed to the shaft, and means by which the wheel may be rotated-both by direct impingement and reaction of an expansible propulsive agent thereupon; said means consisting of an outer and inner set of rings, some of which have full-width pockets and others 'of which have jets, each ring in each set being in contact with the next ring of the same set, and diametrically opposite to the ring with which it coacts in the other set, theringswhichhave jets being of greater width than rings which have pockets.

22. In an impact-motor,- the combination of a casing, a shaft, a wheel rigidly aflixed to he shaft, and means by which the wheel may be rotated both by direct impingement and reaction of an expansible propulsive agent thereupon; said means consistlng of an outer and inner set of rings, some of which have full-width pockets and others of which have jets; each ringin each set being in contact with the next ring of the sameset and iametrically opposite to the ring with which it coacts in the other set, the rings which have jets being of greater wiilth than the rings which have pockets, and the rings which have pockets being contiguous to the rings which have jets, so that the latter rings close the pockets.

23. In an impact-motor, the combination of a casing, a shaft, a wheel rigily aflixed t0 the shaft, and means by which the wheel ment and reaction of an expansible propulsive agent thereupon; said means consisting of an outer and an inner set of rings, each ring being in contact with the next ring'of the same set, some of sail rings having jets and others having full-width pockets which are closed by the sides of the adjacent rings, said adjacent rings having jets, and courses between the pockets and the jets.

24. In an impact-motor, a steam-supply chamber connected with a built-up rigid each of which is in close contact with the next, some of said rings having pockets, and others thereof having jets, and all of said rings being mounted for rotation.

25. In an impact-motor, the combination with a set of pockets and a member opposed thereto having a set of jets, said opposed member completely closing the mouths of said pockets, of a member having a second set of jets, a second set of pockets, the mouths of all of which are closed byone of the mem bers, and means for conducting the steam from said first set of pockets to said second set of jets; said conducting means including outlets located in said pockets and. the aggregate capacity of said outlets being materially greater than the aggregate capacity of said second set of jets. r

26. In an impact-motor, the combination of two members, whereof one fits steamtight within the other, the outermember being so formed upon one of its faces, and the inner member being so formed upon one of its faces as to permit the member to have relative rotation with the other member said members having in their faces the following cooperative elements, namely, a central set of.pockets, jets for discharging into said pockets, a course upon each side of said set of pockets, the latter being in communication-with both courses, jets in said courses, pockets arranged in two circular sets in position to coact with thelast-mentioned jets, courses also in communication with the lastmentioned two sets of pockets, jets in the last-mentioned courses, and pockets arranged in two more circular sets in position to beplayed upon by the last-mentioned jets. 27. In an impact-motor, the combination of two sets of rings, one set so cooperating with the other as to prevent the escape of steam, and means for enabling relative rotation of said sets, some of said rings being formed with pockets and others of sai rings being formed with courses provided with jets, said rings forming a series in which the pocket-rings alternate with the rings, and the pockets in each ring having outlet-openings into the succeeding course.

28. In an impact-motor, the combination of a plurality of sets of rings, one set so cooperating with the other as to fit closely being formed with annular courses provided the first pocket-ring in the series having con- 'tion of said sets, some of said rings being .site said jets.

thereto, and means for enabling relative rota- I formed with pockets and others of said rings with jets, said rings forming a ramified series in which the pocket-rings alternate with the course-rings, and the pockets in each having outlet-openings into the succeeeing course,

nection with two course-rings and the latter having jets playing into two succeeding pocket-rings.

29. In an impact-motor, the combination of two sets of rings, one set so related to the other as to prevent escape of steam, and means for enabling relative rotation of sail sets, some of said rings being formed with pockets and others of said rings being formed with annular courses provided with jets, said rings forming an operant series in which the pocket-rings alternate with the course-rings, and the pockets in each ring having outlet-openings into the succeeding course, the rings in each set being contiguous and each set being capable of withdrawal as a whole from the other set.

30. In an impact-motor, a ring having a series of pockets formed thereon, in combination with an attached adjoining ring closing said pockets but having outlets'therefor, and also having jets in communication with said outlets, and a ring having pockets opposite said jets.

31. In an impactmotor, a ring having a series of pockets formed thereon, each pocket being formed with a face which extends across the Width of the ring, in combination with an attached adjoining ring closing said pockets but having outlets therefor, and also having jets in communication with said outlets, and a ring having pockets oppo- 32. In an impact-motor, the combination with a ring, being formed with a series of pockets, each pocket comprising an impactface, of a ring secured at each side of said pocket-ring, to close-the sides'of the pockets,

said side rings being formed with courses which are in communication with said pockets, jets for said course-rings, and pocketrings opposite said jets.

33. In an impact-motor, the combination with a ring,-being formed with a series of pockets, each pocket comprising an impactface, of rings secured at each side of said pocket-ring to close the sides of the pocket, at least one of said side rings having an annular course, and its walls being perforated opposite said pockets to receive the discharge therefrom, jets also formed in said course-ring, and a pocket-ring opposite said ets.

34. In an impact-motor, a steam-supply member connected with a built-up rig-id set of rings, each of which is in close contact ",8 j L g" with the next, some of said rings having pockets and others thereof having jets, and all of said rings being mounted for rotation.

35. In an impact-motor, the combination with a jet, of a circular set of pockets opposite thereto, two circular courses into both of which said pockets discharge, jets for each of said courses, a circular set of pockets opposite the jets in one of said courses, and a circular set of pockets opposite the jets in the I other of said courses, two courses in communication with said second and third sets of pockets respectively, fourth and fifth sets of pockets, and jets provided in the last-mentioned two courses in position to play upon the said fourth and fifth sets of pockets, said courses, jets and pockets being formed in two cylindriform members fitting steamtight one within the other, and one thereof being mounted for rotation.

36. In an impact-motor, the combination with a jet of a circular set of pockets opposite thereto, an annular course at each side of said set of pockets and in communication therewith,-a set of jets in each of said compartments and a set of pockets opposite each of said sets of jets, said courses, jets and pockets being formed in two cylindriform members fitting steam-tight one within the other, and one thereof being mounted for rotation.

37. In an impact-motor, the combination with a jet, of a circular set of pockets opposite thereto, an annular course at each side of said set of pockets and in communication therewith, a set of jets in each of said compartments, a set ofpockets opposite each of said sets of jets, annular courses at the outer sides of said second and third sets of pockets and each provided with a set of jets, and a set of pockets opposite each of the last-mentioned sets of jets, said courses, jets and pockets being formed in two cylindriform members fitting steam-tight one within the other, and one thereof being mounted for rotation.

38. In an impact-motor, the combination of two cooperating members, whereof one consists of a set of pockets and the other consists of a set of jets, and the following parts at each side of said members, namely, a circular course in communication with said pockets, jets in said circular course, and a circular set of pockets opposite the last-mentioned jets, said courses, jets and pockets being formed in two cylindriform members fitting steam-tight one within the other, and one thereof-being mounted for rotation.

39. In an impact-motor, the combination of two cooperating members, whereof one consists of a set of pockets and the other consists of a set of jets, and the following parts at each side of said members, namely, a circular course in communication with said pockets, jets in said circular course, a

circular set of pockets opposite said jets, a circular course in communication with the last-mentioned pockets, jets in the last-mentioned course, and a circular set of pockets opposite the,last-mentioned jets, said courses, jets and pockets being formed in two cylindriform members fitting steam-tight one within the other, and one thereof being mounted for rotation.

40. In an impact-motor, the combination of two members, whereof one fits steamtight within the other, the outer member being so cylindrical upon its inner face and the inner member being so cylindrical upon its outer face as to permit one member to he slipped endwise over the other and to enable relative rotation of the members; said members having in their cylindrical faces the following cooperative elements, namely, a central set of pockets, jets for discharging into said pockets, a course upon each side of said set of pockets, the latter being in communication with both courses, jets in said courses and pockets arranged in two circular sets in position to be played upon by the last-mentioned jets.

41. In an impact-motor, thecombination of two members, whereof one fits steamtight within the other, the outer member being so cylindrical upon its inner face and the inner member being so cylindrical upon its outer face as to permit one member to be sli ped endwise over the other and to enable re ative rotation of the members, said members having in their cylindrical faces the following cooperative elements, namely, a central set of pockets, jets for discharging into said ockets, a course upon each side of said set of pockets, the latter being in communication with both courses, jets in said courses, pockets arranged in two circular sets in position to coaot with the last-mentioned jets, courses also in communication with the lastmentioned two sets of pockets, jets in the last-mentioned courses, and pockets arranged in two more circular sets in position to be played upon by the last-mentioned jets.

42. In an impact-motor, the combination with a plurality of pocket-rings, of a plurality of course-rings opposite thereto and having jets, said pocket-rings and course-rings taken together forming an operant series in which the pocket-rings alternate with the course-rings, and connections being provided between the pockets in each ring and the course in the succeeding ring in the series, said pocket and course rings forming two cylindriform sets, whereof one fits steamtight within the other.

43. In an impact-motor, the combination with a plurality of pocket-rings, of a pluralty of course-rings opposite thereto and having ets said pocket-rings and course-rings taken together forming an operant series in which-the pocket-rings alternate with the course-rings, and connections being provided between the pockets in each ring and the course in the succeeding ring in the series, said rings being mounted in two sets, whereof one surrounds the other, and fits steam-tight thereto throughout.

44. In an impact-motor, the combination with a plurality of pocket-rings, of a plurality of course-rings opposite thereto, and having jets; said pocket-rings and course-rings taken together forming an operant series in which the pocket-rings alternate with the course-rings, and connections being provided between the pockets in each ring and the course in the succeeding ring in the series, said rings being mounted in two sets, whereof one surrounds the other, the rings in each set being flush one with another, and each set forming a cylinder which may be ,withdrawn bodily from the other set, and

said sets fitting steam-tight throughout.v

45. In an impact-motor, the combination with a plurality of pocket-rings, of a plurality of course-rings opposite thereto, and having jets, said pocket-rings and course-rings taken together forming an operant series in which the pocket-rings alternate with the course-rings, and connections being provided between the pockets in each ring and the course in the succeeding ring in the series, said rings being mounted in two sets, whereof one surrounds and fits steam-tight throughout to the other, a wheel upon the outer periphery whereof one of said sets is secured, and a casing upon the inner periphery whereof the other of said sets is secured.

46. In an impact-motor, a ring having a series of pockets formed therein, each pocket occupying the entire width of the ring, in combination with an attached adjoining ring closing said pockets but having outlets therefor, and also havingjets in communication with said outlets, and a ring having pockets opposite said jets.

47. In an impact-motor, a ring having a series, of pockets formed therein, each pocket being formed with an abrupt impactrface which extends across the entire width of the ring, in combination with an attached adjoining ring closing said pockets but having outlets therefor, and also having jets in communication with said outlets, and a ring having pockets opposite said jets.

48. In an impact-motor, the' combination of a jet, a ring, a set of pockets in said ring opposite said jet, a second ring, a set of jets in said second ring, communications in said second ring between said set of pockets and said set of jets, a third ring, and pockets in said third ring opposite said set of jets, all of said rings being in steam-tight contact throughout.

49. An impact-motor comprising a casing, a shaft, a wheel rigid with the shaft, and means for rotating said wheel both by direct &

impingement and reaction of charges of an expansible propulsive agent thereupon, said means being constituted of two sets of rings, the rings in one set being in close contact each to the next, and all rigidly attached to the casing, and the other rings being in close contact each to the next, and all attached to the wheel, and the rings of each set alternating in their adaptability to discharge and to receive the impingement of the propulsive 1 agent.

50. An impact-motor comprising a casing, a shaft, a wheel rigid with the shaft, and l means for rotating said wheel both by direct impingement and reaction of charges of an expansible propulsive agent thereupon; said means being constituted of two sets of rings, 1 one of which is attached to the casing and the j other of which is attached to thewheel, some I of said rings having full-width pockets,which are closed by the adjacent rings, the latter having jets for the discharge of the propulsive agent.

51. An impact-motor comprising a casing, a shaft, a wheel rigid with the shaft, and. means for rotating said wheel both by direct impingement and reaction of charges of an expansible propulsive agent thereupon; said means being constituted of two sets of rings, one of which is attached to the casing and the other of which is attached to the wheel, some of said rings having full-width pockets,which are closed by the adjacent rings, the latter having jets for the discharge of the propulsive agent, and having in their side walls adjacent to the pockets, ports through which the propulsive agent is received from the pockets.

52. An impact-motor comprising a casing, a shaft, a wheel rigid with the shaft, and means for rotating said wheel both by direct impingement and reaction of charges of an expansible propulsive agent thereupon; said means being constituted of two sets of rings, one of which is attached to the casing and the other of which is attached to the wheel, some of said rings having full-width pockets, which are closed by the adjacent rings, the latter having jets for the discharge of the propuls'ive agent, and having in their side walls ad-- jacent to the pockets, ports through which the propulsive agent is received from the ockets, the rings having jets being of greater width than the rings having pockets, and so arranged that these jet-ri1igs of one set overlap the pocket-rings of the other set to such an extent and so closely that they constitute barriers to the leakage of the propulsive agent.

53. In an impact-motor the combination with a circular set of pockets, and a member opposed thereto having jets, said opposed member closing the mouths of said pockets, of a member having a second jet, and a second set ofpockets, the mouths of all of which are closed by the last-mentioned member, and means for conducting the fluid from the first set of pockets to the second set of jets, said means including outlets formed in said pockets.

54. In an impact-motor the combination with a set of pockets, and a member opposed t'iiereto having jets, said opposed member closing t} e mouths of said pockets, of a member 11 aving a second jet and second set of pockets, tie mouti: s of all of wliich are closed by the last-mentioned member and means for conducting a fluid from tie first set of pockets to tie second set of jets.

55. In an impact-motor, the combination with a ring l1 aving a series of pockets tl. erein, each pocket comprising an abrupt impact face w iich extends entirely across tlte ring, of a ring secured at each side of said pocketring to close the sides of tie pockets, said side rings being formed with courses Wl'ich are in communication with said pockets, jets for said course-rings, and pocket-rings oppo- .site said jets.

56. In an impact-motor, tlie combination with a ring, In aving a series of pockets formed therein, each pocket comprising an abrupt impact-face which extends entirely across the ring, of rings secured at each side of said pocket-ring to close the sides of tlle'pockets at least one of the said rings i=1 aving an annular course, and its walls being perforated opposite said pockets to receive the discharge therefrom; jets also formed in said coursering, and a pocket-ring opposite said jets.

57. In an impact-motor a combination of two sets of members each set being contiguous and the members in one set fitting steamtight in tie other set and being so mounted that one set may be separated from the other set each of said sets comprising pocket members and course members and the course members in each set being opposite to the pocket members in tle otl er set and l aving jets for playing into the latter and being also in connection with the preceding pocket member in its own set to receive the discharge t1: erefrom.

58. In an impact-motor, the combination of a wlw eel and a casing fitted tl. ereto so as to prevent escape of steam longitudinally between said members, .one of said members ltaving sets of peripheral pockets and also 1. aving a course between said sets, said course being in communication with the first set of pockets, and being also provided with a series of jets, and the other of said members having courses opposite said sets of pockets and also having a. set of pockets opposite the jets in the wheel, said casing-courses being also provided with jets, and all the courses alternating in series with the sets of pockets, so that the steam may jet from the first IXO course, and may then jet through the second set of pockets to the third course, and may then jet into the third set of pockets.

59. In an impact-motor, the combination with a wheel and a casing, of a plurality of peripheral pockets and a plurality of case members provided with jets opposed to said pockets, said members being disposed alternately in series with said sets of pockets, so that the steam may jet from the first course into the first set of pockets, and pass thence into the second course, thence jet into the second set of pockets, and so on through the series, each course member completely closing the mouths of all of the opposed pockets, and each of the latter having an escape for thesteam into the succeeding course member.

60. In an impact-motor, the combination 20 of two members one surrounding and fitting closely to the other for preventing the escape of a fluid and means for enabling relative rotation of said sets, some of said members being formed with pockets and others of said members being formed With annular courses provided with jets, said members forming an o erant series in which the pocket members a ternate with the course members andpockets in each member having outlet-openings in the succeeding course, the members in each set being contiguous and each set being capable of Withdrawal as a whole from the other set.

Signed at Nos. 9-15 Murray street, New

York, N. Y., this 20th day of November,

CHESTER COMSTOCK.

lVitnesses:

FRED. J. DOLE,

E. EVERETT ELLrs.

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